Passphrase Password Generator
Make long, memorable passphrases that are strong and easy to recall.
Open tool
Guide: Coming soon
Make (and remember) strong passphrases
Free Online Computer Help
Providing free online computer help is part of the values that drives eComputerZ.
I've developed a set of online tools that are fast, easy to use, and delivers outcomes.
Try the tools below, such as the Internet speed test tool and the passphrase generator.
Enjoy, and please share.
Computer Help Tools — simple, fast and safe
Welcome to your easy toolkit from eComputerZ. Check passwords, work out download times, clean up start-up apps, plan backups and more — all in plain English.
Privacy-first
Fast & free
No sign-up
Tools by category
Choose a category to match what you’re trying to do. Every tool explains itself in a sentence or two and most run entirely in your browser.
Security & scams
Privacy
Internet & Wi-Fi
Backups & storage
PC & device checks
Files & apps
Help & learning
Security & scams
Check passwords, spot phishing, and avoid risky links, files and QR codes.
Has this password been leaked?
Check safely on your device. If it’s in breaches, we’ll guide next steps.
Open tool
Guide: Coming soon
What to do if your password was leaked (step-by-step)
Cyber Hygiene Scorecard
Answer quick questions and get a clear score out of 100 plus your next best fixes.
Email Header Analyzer
Paste raw headers to spot common red flags and understand authentication results.
Open tool
Guide: Coming soon
How to spot phishing emails
Suspicious Link Checker
Decode messy links, reveal lookalike domains, and get a simple “what to do next”.
Open tool
Guide: Coming soon
How to check a link is safe
QR Code Safety Checker
Upload a QR image and preview the destination safely before opening it.
Open tool
Guide: Coming soon
Avoid QR code scams
File Type Risk Checker
Enter a file extension and learn safe ways to handle unknown downloads.
Open tool
Guide: Coming soon
Open unknown files safely
Privacy
Remove hidden data and redact sensitive information before you share.
Photo Privacy Cleaner
Strip hidden location/camera data before sharing photos.
Open tool
Guide: Coming soon
What is EXIF data (and how to stop geotagging)
Screenshot Redactor
Blur or cover sensitive info before sharing screenshots — privacy-first and local.
Open tool
Guide: Coming soon
Share screenshots safely
Internet & Wi-Fi
Measure speed, check stability, and fix weak Wi-Fi step-by-step.
Internet Speed Test
Measure download, upload and latency — then compare with your plan.
Open tool
Guide: Coming soon
Internet speed, latency & jitter explained
Ping and Jitter Test
See if your connection is smooth enough for video calls, gaming and streaming.
Open tool
Guide: Coming soon
Why calls lag on “fast” internet (bufferbloat)
Wi-Fi Troubleshooter
Fix slow or patchy Wi-Fi with easy checks — no jargon.
Download/Upload Time Estimator
Turn your speed into real times for movies, game updates and backups.
Open tool
Guide: Coming soon
Mbps vs MB/s (and why times vary)
Backups & storage
Plan what to back up, build a habit, and understand storage numbers.
Storage & Backup Planner
Work out space needs and choose a simple 3-2-1 backup that fits your life.
Backup Reminder & Restore Test Planner
Set reminders, log restore tests, and export calendar events (ICS) to build a backup habit.
Open tool
Guide: Coming soon
How often to test backups
Tech Unit Converter
Convert Mbps↔MB/s, GiB↔GB and more — so speed and storage numbers make sense instantly.
Open tool
Guide: Coming soon
Bits vs bytes explained
PC & device checks
Diagnose slowness, test hardware, and fix common browser permission problems.
“My PC is Slow” Quick Triage
A simple decision tree to diagnose slowness and follow safe, step-by-step fixes.
Open tool
Guide: Coming soon
Speed up a slow computer safely
PC Start-up Cleanup Planner
Spot what slows your boot and follow a safe, step-by-step clean-up plan.
Browser & OS Up-to-Date Checker
Quickly see if your browser and device are current — plus how to update.
Keyboard, Mouse & Touchpad Tester
Test key presses, clicks, scroll and stuck keys — useful for quick troubleshooting.
Screen Test Patterns
Full-screen colour blocks and gradients to spot dead pixels, banding and clarity issues.
Open tool
Guide: Coming soon
Fix blurry text & scaling
Camera / Microphone blocked by extension
Fix camera or mic not working when a browser extension is blocking permissions.
Files & apps
Open files safely and verify downloads to reduce malware risk.
File Checksum & Signature Verifier
Compute SHA-256, SHA-1 & MD5 and verify detached signatures — all in your browser.
Open tool
Guide: Coming soon
Verify downloads safely (checksums & signatures)
Which app opens this file?
Type a file ending (like .heic or .7z) and get safe, trusted app suggestions.
Open tool
Guide: Coming soon
File extensions explained
Help & learning
Get better support faster and keep up with trustworthy tech news.
Support Report Generator
Answer guided questions and generate a clean copy/paste report for IT support.
Open tool
Guide: Coming soon
How to describe a problem (fast)
Latest Tech News
Today’s hand-picked technology headlines in one fast, clean wallboard.
Not sure where to start?
- Passwords first. Try Password Breach Checker. If anything shows up, make a long passphrase and switch on 2FA.
- Connection check. Use the Internet Speed Test, then convert your result to real transfer times with the Download/Upload Time Estimator. Next, run the Wi-Fi Troubleshooter and the Ping and Jitter Test to check stability.
- Protect memories. Plan a simple 3-2-1 backup and read our quick guide.
Helpful guides (plain English)
Security & scams
- Make (and remember) strong passphrases Coming soon
- Two-factor authentication: quick setup
- How to spot phishing emails Coming soon
- How to check a link is safe Coming soon
- Avoid QR code scams Coming soon
Internet & Wi-Fi
- Internet speed, latency & jitter explained Coming soon
- Better Wi-Fi in every room
- Why calls lag on “fast” internet (bufferbloat) Coming soon
Backups & updates
- 3-2-1 backups without the jargon
- 3-2-1 backup rule (simple guide)
- How often to test backups Coming soon
- Why updates matter
Privacy
- What is EXIF data (and how to stop geotagging) Coming soon
- Share screenshots safely Coming soon
Frequently asked questions
Are these tools free?
Yes — free to use, no sign-up, no selling your data.
Do you store my passwords or files?
No. Many tools run locally in your browser. Any tool that calls a trusted external service explains exactly what’s sent and why.
Do these tools work on phones and tablets?
Most do. Some tools work best on a larger screen (for example, full-screen display tests), but you can still use the majority on mobile.
What data leaves my device when I use a tool?
By default, tools are designed to run locally. If a tool needs to call an external service (for example, a security lookup), we explain what’s sent, what isn’t, and what you should expect to see.
Can I use these at work or on a locked-down device?
Usually yes — most tools run in the browser with no installs. If your organisation blocks uploads or certain sites, try a different browser, a personal device, or use the Support Report tool to capture details for IT.
Why does my internet speed differ from what my provider advertises?
Real-world results vary due to Wi-Fi signal, network congestion, router limits, device performance, and the test server location. Use the Speed Test alongside Ping/Jitter and the Wi-Fi Troubleshooter to pinpoint where the bottleneck is.
Will these tools fix the problem, or just diagnose it?
Many tools do both. Some measure or confirm what’s happening (diagnosis), then point you to the safest next steps. Where a tool can’t directly fix something, it helps you gather the right evidence to fix it faster.
Accessibility: can I use these with keyboard-only or reduced motion?
Yes — the layout is designed to be readable and keyboard-friendly, and the hover effects respect reduced-motion preferences.
How often are the numbers updated?
Where a tool shows “live” stats, those refresh on a regular schedule and we show dates/sources where appropriate. Tool behaviour and guidance are reviewed as platforms and threats change.
How do I report a bug or suggest a tool?
Use our contact page. We read every message.
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